Source: Noto CJK

U+3378 Square Dm Squared

U+3378 was added in Unicode version 4.0 in 2003. It belongs to the block U+3300 to U+33FF CJK Compatibility in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Other Symbol and is commonly used, that is, in no specific script.

The glyph is a square composition of the glyphs Latin Small Letter D, Latin Small Letter M, Superscript Two. Its East Asian Width is wide. In bidirectional text it acts as Other Neutral. When changing direction it is not mirrored. U+3378 offers a line break opportunity at its position, except in some numeric contexts.

The Wikipedia has the following information about this codepoint:

The square metre (international spelling as used by the International Bureau of Weights and Measures) or square meter (American spelling) is the unit of area in the International System of Units (SI) with symbol m². It is the area of a square with sides one metre in length.
Adding and subtracting SI prefixes creates multiples and submultiples; however, as the unit is exponentiated, the quantities grow exponentially by the corresponding power of 10. For example, 1 kilometre is 10³ (one thousand) times the length of 1 metre, but 1 square kilometre is (10³)² (10⁶, one million) times the area of 1 square metre, and 1 cubic kilometre is (10³)³ (10⁹, one billion) cubic metres.

Representations

System	Representation
Nº	13176
UTF-8	E3 8D B8
UTF-16	33 78
UTF-32	00 00 33 78
URL-Quoted	%E3%8D%B8
HTML hex reference	㍸
Wrong windows-1252 Mojibake	ã¸

Elsewhere

Complete Record

Property	Value
Age (age)	4.0 (2003)
Unicode Name (na)	SQUARE DM SQUARED
Unicode 1 Name (na1)	—
Block (blk)	CJK Compatibility
General Category (gc)	Other Symbol
Script (sc)	Common
Bidirectional Category (bc)	Other Neutral
Combining Class (ccc)	Not Reordered
Decomposition Type (dt)	square
Decomposition Mapping (dm)	Latin Small Letter D Latin Small Letter M Superscript Two
Lowercase (Lower)	✘
Simple Lowercase Mapping (slc)	Square Dm Squared
Lowercase Mapping (lc)	Square Dm Squared
Uppercase (Upper)	✘
Simple Uppercase Mapping (suc)	Square Dm Squared
Uppercase Mapping (uc)	Square Dm Squared
Simple Titlecase Mapping (stc)	Square Dm Squared
Titlecase Mapping (tc)	Square Dm Squared
Case Folding (cf)	Square Dm Squared
ASCII Hex Digit (AHex)	✘
Alphabetic (Alpha)	✘
Bidi Control (Bidi_C)	✘
Bidi Mirrored (Bidi_M)	✘
Composition Exclusion (CE)	✘
Case Ignorable (CI)	✘
Changes When Casefolded (CWCF)	✘
Changes When Casemapped (CWCM)	✘
Changes When NFKC Casefolded (CWKCF)	✔
Changes When Lowercased (CWL)	✘
Changes When Titlecased (CWT)	✘
Changes When Uppercased (CWU)	✘
Cased (Cased)	✘
Full Composition Exclusion (Comp_Ex)	✘
Default Ignorable Code Point (DI)	✘
Dash (Dash)	✘
Deprecated (Dep)	✘
Diacritic (Dia)	✘
Emoji Modifier Base (EBase)	✘
Emoji Component (EComp)	✘
Emoji Modifier (EMod)	✘
Emoji Presentation (EPres)	✘
Emoji (Emoji)	✘
Extender (Ext)	✘
Extended Pictographic (ExtPict)	✘
FC NFKC Closure (FC_NFKC)	Square Dm Squared
Grapheme Cluster Break (GCB)	Any
Grapheme Base (Gr_Base)	✔
Grapheme Extend (Gr_Ext)	✘
Grapheme Link (Gr_Link)	✘
Hex Digit (Hex)	✘
Hyphen (Hyphen)	✘
ID Continue (IDC)	✘
ID Start (IDS)	✘
IDS Binary Operator (IDSB)	✘
IDS Trinary Operator and (IDST)	✘
IDSU (IDSU)	0
ID_Compat_Math_Continue (ID_Compat_Math_Continue)	0
ID_Compat_Math_Start (ID_Compat_Math_Start)	0
Ideographic (Ideo)	✘
InCB (InCB)	None
Indic Mantra Category (InMC)	—
Indic Positional Category (InPC)	NA
Indic Syllabic Category (InSC)	Other
Jamo Short Name (JSN)	—
Join Control (Join_C)	✘
Logical Order Exception (LOE)	✘
Math (Math)	✘
Noncharacter Code Point (NChar)	✘
NFC Quick Check (NFC_QC)	Yes
NFD Quick Check (NFD_QC)	Yes
NFKC Casefold (NFKC_CF)	Latin Small Letter D Latin Small Letter M Digit Two
NFKC Quick Check (NFKC_QC)	No
NFKC_SCF (NFKC_SCF)	Latin Small Letter D Latin Small Letter M Digit Two
NFKD Quick Check (NFKD_QC)	No
Other Alphabetic (OAlpha)	✘
Other Default Ignorable Code Point (ODI)	✘
Other Grapheme Extend (OGr_Ext)	✘
Other ID Continue (OIDC)	✘
Other ID Start (OIDS)	✘
Other Lowercase (OLower)	✘
Other Math (OMath)	✘
Other Uppercase (OUpper)	✘
Prepended Concatenation Mark (PCM)	✘
Pattern Syntax (Pat_Syn)	✘
Pattern White Space (Pat_WS)	✘
Quotation Mark (QMark)	✘
Regional Indicator (RI)	✘
Radical (Radical)	✘
Sentence Break (SB)	Other
Soft Dotted (SD)	✘
Sentence Terminal (STerm)	✘
Terminal Punctuation (Term)	✘
Unified Ideograph (UIdeo)	✘
Variation Selector (VS)	✘
Word Break (WB)	Other
White Space (WSpace)	✘
XID Continue (XIDC)	✘
XID Start (XIDS)	✘
Expands On NFC (XO_NFC)	✘
Expands On NFD (XO_NFD)	✘
Expands On NFKC (XO_NFKC)	✔
Expands On NFKD (XO_NFKD)	✔
Bidi Paired Bracket (bpb)	Square Dm Squared
Bidi Paired Bracket Type (bpt)	None
East Asian Width (ea)	wide
Hangul Syllable Type (hst)	Not Applicable
ISO 10646 Comment (isc)	—
Joining Group (jg)	No_Joining_Group
Joining Type (jt)	Non Joining
Line Break (lb)	Ideographic
Numeric Type (nt)	none
Numeric Value (nv)	not a number
Simple Case Folding (scf)	Square Dm Squared
Script Extension (scx)
Vertical Orientation (vo)	U